Can polypropylene tableware be used in a microwave?
美国食品药品监督管理局（FDA）测定了各种塑料容器在正常微波炉加热中可能释放到食物中的有害物质的量，要求这个量低于动物实验确定的有害剂量的百分之一甚至千分之一，才可以标注为“可微波加热”。所以，对于那些合格的“可微波加热”的塑料容器，是相当安全的。
The United States Food and Drug Administration (FDA) has determined the amount of harmful substances that various plastic containers may release into food during normal microwave heating. It is required that this amount be less than one percent or even one thousandth of the harmful dose determined in animal experiments before it can be labeled as "microwave heatable". So, for plastic containers that are qualified for "microwave heating", it is quite safe.
聚丙烯塑料（PP）是继尼龙之后发展的又一优良树脂品种，它是一种高密度、无侧链、高结晶的聚合物，具有优良的综合性能。未着色时呈白色半透明，蜡状，比聚乙烯轻。透明度也较聚乙烯好，比聚乙烯刚硬，它的特点是耐热性高，坚韧耐震，耐酸耐碱性好。在室温下，Polypropylene plastic (PP) 不溶于有机溶剂，长期浸在有机溶剂中，也不会溶解。
Polypropylene plastic (PP) is another excellent resin variety developed after nylon. It is a high-density, side chain free, high crystalline polymer with excellent comprehensive properties. When not colored, it appears white, translucent, waxy, and lighter than polyethylene. The transparency is also better than polyethylene, and it is harder than polyethylene. characteristics of Polypropylene plastic (PP) are high heat resistance, toughness, shock resistance, and good acid and alkali resistance. At room temperature, Polypropylene plastic (PP) is insoluble in organic solvents and will not dissolve even after long-term immersion in organic solvents.
鉴于以上特点，聚丙烯塑料PP是唯一可以放进微波炉内的塑料容器材料，而且是可以反复使用的塑料容器，可作为储物容器存放食物、油类和调味品等。
Given the above characteristics, polypropylene plastic PP is the only plastic container material that can be placed in a microwave oven and can be reused as a storage container for food, oils, and condiments.
